Answer:
-8
this is the all answer but no steps
Idk but pointsss???????????????
Answer:
Step-by-step explanation:
Binomial Expansion:

Pascal's Triangle:
Zero row 1
First row 1 1
Second row 1 2 1
Third row 1 3 3 1
Fourth row 1 4 6 4 1
Based on the picture she could use wood screen screws to make something similar